Generell informasjon Brønnbane navn Type Formål Status Faktakart i nytt vindu Hovedområde 6508/1-1 A EXPLORATION WILDCAT P&A lenke NORWEGIAN SEA Brønn navn 6508/1-1 Seismisk lokalisering ST9203- INNLIN 1313 & X-LINE 1269 Boret i utvinningstillatelse 213 Boreoperatør Boretillatelse 964-L Saga Petroleum ASA Boreinnretning SCARABEO 5 Bore dager 16 Borestart 29.08.1999 Boreslutt 13.09.1999 Frigitt dato 13.09.2001 Publiseringsdato 15.11.2001 Opprinnelig formål Gjenåpnet Innhold Funnbrønnbane Avstand, boredekk - midlere havflate Vanndybde ved midlere havflate WILDCAT NO DRY NO 25.0 389.0 Totalt målt dybde (MD) [m RKB] 2861.0 Totalt vertikalt dybde (TVD) [m RKB] 2563.5 Maks inklinasjon [ ] 40.7 Temperatur ved bunn av brønnbanen [ C] Eldste penetrerte alder Eldste penetrerte formasjon Geodetisk datum NS grader ØV grader 86 MIDDLE JURASSIC MELKE FM ED50 65 57' 57.03'' N 8 3' 15.03'' E NS UTM 7316611.95 ØV UTM 457013.94 UTM sone 32 NPDID for brønnbanen 3849 Side 1 av 5
Brønnhistorie General Well 6508/1-1 S was drilled in between the Norne Field and the Nordland Ridge. Well 6508/1-1 A was sidetracked from below the 13 3/8" casing shoe in 6508/1-1 S. Water based mud was used in both well tracks. The main purpose of 6508/1-1 S was to test for the presence of hydrocarbons in the Middle Jurassic, Fangst Group. The secondary purposes were to test for the presence of hydrocarbons in the sandstone immediately above the Tertiary-Cretaceous boundary (Paleocene-Campanian) as well as for possible sandstones in the Cretaceous succession, in the Upper Jurassic Melke Formation, and in lower Jurassic Båt Group. The main purpose of 6508/1-1 A was to test for the presence of hydrocarbons in the Upper Jurassic Rogn Formation. The secondary objective was to test for the presence of sandstone and hydrocarbons both above and below the Tertiary-Cretaceous boundary (Paleocene-Campanian), possible sandstones in the Cretaceous succession, in the Upper Jurassic Melke Formation. Operations and results Well 6508/1-1 S proved that the Middle to Lower Jurassic Fangst Group and Båt Group sandstone reservoirs of the target prospect were found water bearing with no shows and very low background gas readings. No, or only traces of sand were encountered in the secondary objectives and no direct hydrocarbon shows detected. However, the gas readings indicated presence of heavier migrated hydrocarbons throughout the Lower Tertiary to Upper Jurassic section in which alkanes up to C5 were detected. No cores were cut and no fluid samples taken. The well was plugged back and well 6508/1-1 A was sidetracked at 1219 m. This well was drilled to TD at 2861 m (2563.5 m TVD RKB) in the Melke Formation. No cores were cut and no fluid samples taken. No significant hydrocarbons were found and the well was plugged and abandoned as a dry hole. Testing No drill stem test was performed. Borekaks i OD Borekaksprøve, topp dybde Borekaksprøve, bunn dybde 1230.00 2859.00 Borekaksprøve tilgjengelig YES Litostratigrafi Top depth Lithostrat. unit 414 NORDLAND GP 414 NAUST FM Side 2 av 5
Side 3 av 5
1340 KAI FM 1642 HORDALAND GP 1642 BRYGGE FM 1875 ROGALAND GP 1875 TARE FM 1947 TANG FM 2009 SHETLAND GP 2009 SPRINGAR FM 2573 VIKING GP 2573 SPEKK FM 2738 MELKE FM Spleisede logger navn format størrelse [KB] 3849 pdf 0.19 Geokjemisk informasjon navn format størrelse [KB] 3849_1 pdf 1.72 3849_2 pdf 1.87 3849_3 pdf 1.85 3849_4 pdf 1.83 3849_5 pdf 1.80 3849_6 pdf 1.73 Foringinsrør og formasjonsstyrketester Type utforing Utforing diam. [tommer] Utforing dybde Brønnbane diam. [tommer] Brønnbane dyp Slam egenvekt ekvivalent [g/cm3] Type formasjonstest CONDUCTOR 30 462.5 36 467.0 0.00 LOT SURF.COND. 13 3/8 1204.0 17 1/2 1209.0 1.71 LOT INTERM. 9 5/8 2581.0 12 1/4 2587.0 0.00 LOT OPEN HOLE 2861.0 8 1/2 2861.0 0.00 LOT Side 4 av 5
Boreslam Dybde Egenvekt, Viskositet, Flytegrense Type slam MD slam [g/cm3] slam [mpa.s] [Pa] 1535 1.40 32.0 kcl mud 2352 1.40 32.0 kcl mud 2587 1.40 31.0 kcl mud 2735 1.40 28.0 kcl mud 2861 1.40 32.0 kcl mud Dato, måling Side 5 av 5